What was found
INVESTIGATION FOR GROUND HANDLING DIRECTIONAL CONTROL (GROUND LOOP) FOUND BRAKES AT FAULT. WHEN THE BRAKE LINE WAS DISCONNECTED AT THE WHEEL CYLINDER AND BRAKE PRESSURE WAS APPLIED, A GOOEY SUBSTANCE WAS EXCRETED FROM THE BRAKE LINE. THIS WAS ORIGINALLY 5606 'RED JUICE' THAT HAD CONGEALED. ACFT HAS A RETRACTABLE, NON-STEERABLE TAIL WHEEL THAT REQUIRES SOME BRAKING FOR DIRECTIONAL CONTROL. THE CONGEALED FLUID CAUSED A DELAY IN THE ACTION OF THE BRAKES, AND ANOTHER DELAY IN THE REMOVAL OF BRAKE APPLICATION. NOT A GOOD SITUATION.